code: def layer(self):
      from lasagne.layers.base import MergeLayer
  
      return MergeLayer([Mock(), Mock()])
  
imports: from mock import Mock
  import numpy
  import pytest
  import theano
label_desc: Use image node_id 1 for calling the TestMergeLayer obj's underlying member method code with example usage: obj.layer() and returns: MergeLayer